Since the CDC limits data reporting on breakthrough COVID-19 infections — those occurring among fully vaccinated people — to those that cause severe disease, mild or asymptomatic infections caused by ...
The Centers for Disease Control and Prevention listed the COVID-19 delta variant as one of its "variants of concern" (VOCs) on June 15. According to the CDC, VOCs can be more contagious, more ...
Some Americans who received the Covid-19 vaccine earlier this year are hearing surprising and relatively rare news: They’ve tested positive for the coronavirus. These so-called breakthrough cases are ...
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